I had my LIS yesterday and so far so good. I had a very deep chronic fissure that had formed an abcess and a fitula was starting to form. I had thought I felt a painful bump in the rear of my rectum and was worried this all was something more serious. Turns out that bump was the abcess.
Anyway, I have immediate relief from the LIS but still some discomfort. My rectum was packed with surgifoam and is still in there. Somehow this is supposed to be passed with my first BM...god I'm worried about that! Anyway just wanted to share a more positive early experience.